High-precision lining loss measuring device for aluminum electrolysis intermediate frequency furnace

Abstract

The application relates to the technical field of electrolytic aluminum production and processing control, and specifically discloses a high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring device, which comprises a level gauge, a vertical gauge rod, an arc scale and a main measuring scale, wherein the level gauge and the vertical gauge rod are connected into a cross shape through screws, one end of the arc scale is fixed to the upper end of the vertical gauge rod, and the other end extends to the upper end of the main measuring scale; and the main measuring scale and the vertical gauge rod are connected into a scissors shape through screws. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring device can clearly judge the lining thickness change while the structure of the intermediate frequency furnace lining thickness detection device is simple.

Description

Technical Field

[0001] This application relates to the field of electrolytic aluminum production and processing control technology, specifically to a high-precision aluminum electrolytic medium-frequency furnace lining loss measuring device. Background Technology

[0002] Induction furnaces serve both melting and heat preservation functions and are widely used. Sometimes they are used as melting furnaces, sometimes in conjunction with cupola furnaces for duplex melting, and sometimes to directly melt solid cold materials. During tapping, the furnace body is tilted at a certain angle, and the molten iron flows out along the front wall. The flowing molten iron, due to gravity, exerts pressure that erodes the furnace lining. Simultaneously, due to the magnetic field, the molten iron rolls along the magnetic lines of force, also eroding the lining, causing the front wall to thin. Meanwhile, due to the furnace tilt and the gradually decreasing amount of molten iron, the area eroded by the molten iron gradually decreases. Combined with differences in heating, slag leaching, and physicochemical reactions of the lining, this results in uneven thickness of the lining at both ends.

[0003] The lining wear of an intermediate frequency furnace is a crucial indicator during equipment operation. To ensure the safe and stable operation of the equipment, we need to accurately measure the lining wear and monitor the dimensional changes of the furnace chamber in real time.

[0004] Existing methods for detecting the thickness of medium-frequency furnace linings include multi-head thermocouple methods, resistance methods, and capacitance methods. These methods all require pre-embedded sensors and other components within the furnace, making the process relatively complex. Other methods include ultrasonic methods, heat flow detection methods, and model inference methods, but these are computationally complex and costly. Summary of the Invention

[0005] The purpose of this application is to provide a high-precision aluminum electrolysis medium-frequency furnace lining loss measuring device to solve the problem that existing medium-frequency furnace lining thickness detection devices, while simple in structure, cannot clearly determine the changes in lining thickness.

[0006] To achieve the above objectives, this application provides a high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument, comprising: a horizontal ruler, a vertical ruler rod, an arc-shaped scale ruler, and a main measuring ruler, wherein... The horizontal ruler and the vertical ruler are connected in a cross shape by screws. One end of the arc-shaped scale is fixed to the upper end of the vertical ruler, and the other end extends to the upper end of the main measuring ruler. The main measuring ruler and the vertical ruler are connected in a scissor shape by screws.

[0007] Optionally, the arc-shaped scale is semi-circular, and the surface of the scale is uniformly engraved with several scale lines.

[0008] Optionally, the main measuring scale and the vertical scale bar are coated with a heat-insulating coating, which includes an anti-corrosion layer and a thermochromic coating.

[0009] Optionally, the thermochromic coating is applied to the end of the main measuring scale and vertical ruler near the insulated anti-slip handle, and the anti-corrosion layer is applied to the end of the main measuring scale and vertical ruler away from the insulated anti-slip handle.

[0010] Optionally, the vertical ruler is marked with vertical graduation lines.

[0011] Optionally, both the main measuring scale and the vertical ruler are equipped with an insulated, non-slip handle at the end near the arc-shaped scale.

[0012] Optionally, the length of the horizontal ruler is greater than the diameter of the inlet of the medium-frequency furnace.

[0013] Optionally, the surface of the level is equipped with a level bubble meter.

[0014] Optionally, a rotation limit strip is provided at the connection between the main measuring scale and the vertical ruler.

[0015] The embodiments of this application have the following advantages: 1. Solving the measurement challenges of hot furnaces: Since hot furnaces typically operate at temperatures of 1000℃ or even higher, traditional measurement methods involving manual entry into the furnace are no longer applicable. The use of a furnace lining wear measuring device effectively solves this problem. It can operate stably in high-temperature environments, accurately assessing the degree of furnace lining wear, thereby preventing equipment malfunctions due to inaccurate data.

[0016] 2. Precise monitoring of wear level: Through the furnace lining wear measuring device, operators can monitor the wear level of the furnace lining in real time. This precise data monitoring allows operators to shut down the equipment in time before the furnace lining wear reaches a dangerous level, thus effectively preventing safety accidents caused by excessive furnace lining wear.

[0017] 3. Improve production operation management: The furnace lining loss measuring instrument not only provides accurate data support, but also transforms this data into a basis for safety risk management. Through data analysis, managers can promptly identify potential safety hazards and take effective preventive measures, thereby improving the safety and stability of the entire production process.

[0018] 4. More Intuitive Control for Operators: Data from the furnace lining wear measuring device provides operators with a more intuitive understanding of the equipment's safety status. This enables operators to make more accurate judgments and decisions based on actual conditions during daily work, thereby improving operational safety and efficiency. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 A schematic diagram of a high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring device provided for at least one embodiment of this application; Figure 2 A top view of a rotating limit bar for a high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring device provided for at least one embodiment of this application; Figure 3 A front view of the rotation limit bar of a high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring device provided for at least one embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1. Level ruler, 2. Vertical ruler bar, 3. Main measuring ruler, 4. Rotary limit bar, 5. Insulated anti-slip handle, 6. Arc-shaped scale. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0025] This application provides a high-precision aluminum electrolysis medium-frequency furnace lining loss measuring instrument, for reference... Figure 1 It includes: a horizontal ruler 1, a vertical ruler 2, an arc-shaped scale ruler 6, and a main measuring ruler 3. The horizontal ruler 1 and the vertical ruler 2 are connected in a cross shape by screws. One end of the arc-shaped scale ruler 6 is fixed to the upper end of the vertical ruler 2, and the other end extends to the upper end of the main measuring ruler 3.

[0026] Specifically, the vertical ruler 2 and the horizontal ruler 1 are connected by screws to form a cross-shaped structure, creating a fixed structure that serves as a support base. The vertical ruler 2 is made of high-temperature resistant material, and its length can be designed according to the furnace depth. In some embodiments, the vertical ruler 2 is marked with vertical graduation lines to assist in depth measurement.

[0027] Specifically, the arc-shaped scale 6 has a semi-circular arc structure, made of ceramic or high-temperature resistant alloy, with one end fixed to the upper end of the vertical scale rod 2 and the other end extending to the upper end of the main measuring scale 3.

[0028] In some embodiments, the main measuring ruler 3 and the vertical ruler 2 are connected in a scissor shape by screws.

[0029] Specifically, the main measuring ruler 3 and the vertical ruler rod 2 are connected by screws to form a scissor-like structure, allowing the main measuring ruler 3 to rotate around the connection point for flexible adjustment. The main measuring ruler 3 is made of high-temperature resistant insulating material (such as ceramic fiber reinforced composite material).

[0030] In some embodiments, the arc-shaped scale 6 is semi-circular, and the surface of the scale is uniformly engraved with several scale lines.

[0031] Specifically, the scale lines can be scale lines representing angles, such as 0° to 180°, and the arc-shaped scale 6 is used to measure the thickness change of the furnace lining, thereby calculating the degree of wear.

[0032] In some embodiments, an insulating anti-slip handle 5 is provided at one end of the main measuring ruler 3 and the vertical ruler 2 near the arc-shaped scale 6, and the two insulating anti-slip handles 5 are respectively installed on the opposite side wall of the main measuring ruler 3 and the vertical ruler 2.

[0033] Specifically, the insulated and non-slip handle 5 is made of insulating material (such as silicone rubber or polytetrafluoroethylene) and has non-slip texture on the surface to prevent operators from slipping or getting electric shock in high-temperature environments.

[0034] In some embodiments, the main measuring scale 3 and the vertical scale rod 2 are coated with a heat-insulating coating, which includes an anti-corrosion layer and a thermochromic coating. The thermochromic coating is applied to the end of the main measuring scale 3 and the vertical scale rod 2 near the insulating anti-slip handle 5, and the anti-corrosion layer is applied to the end of the main measuring scale 3 and the vertical scale rod 2 away from the insulating anti-slip handle 5 (i.e., the part in contact with the furnace environment).

[0035] In some embodiments, the horizontal ruler 1 is designed to have a length greater than the diameter of the induction furnace opening.

[0036] Specifically, the level 1 is made of a high-strength, low-thermal-expansion-coefficient metal material (such as stainless steel or titanium alloy), and its designed length is greater than the diameter of the induction furnace opening to ensure stable mounting on the furnace opening. It can be adjusted according to the furnace opening size. In some embodiments, the level 1 surface is equipped with a bubble level to ensure it remains horizontal during measurement, improving measurement accuracy.

[0037] In some embodiments, a rotation limit strip 4 is provided at the connection between the main measuring ruler 3 and the vertical ruler bar 2.

[0038] Specifically, the rotating limiting strip 4 is a mechanical device used to constrain the relative rotation angle between the main measuring scale 3 and the vertical ruler 2. The rotating limiting strip 4 is a rigid, elongated strip with an arc shape, its center aligned with the connection point between the main measuring scale 3 and the vertical ruler 2. One end of this arc-shaped limiting strip is securely connected to the vertical ruler 2 by a fixing screw, while the other end is a free end with an arc-shaped groove. The arc-shaped groove is an arc-shaped through hole aligned with the connection point, and its length determines the maximum adjustable angle range of the main measuring scale 3 relative to the vertical ruler 2 (e.g., 0° to 90°).

[0039] Operating steps: 1. The operator holds the insulated non-slip handle 5 and inserts the lower ends of the main measuring ruler 3 and the vertical ruler rod 2 into the furnace, so that the horizontal ruler 1 is set up on the furnace mouth of the medium frequency furnace. Adjust the horizontal ruler 1 to center the horizontal bubble meter and ensure that the measuring instrument is horizontal.

[0040] 2. By adjusting the scissor-shaped structure, keep the vertical ruler 2 vertical, and let the lower end of the main measuring ruler 3 lightly touch the furnace lining surface to read the scale value at the position of the main measuring ruler 3 on the arc-shaped scale ruler 6.

[0041] 3. By recording changes in angle, the degree of wear on the furnace lining can be understood. The wear rate can then be calculated by combining this data with the thickness data.

[0042] Note that, unless otherwise explicitly stated, all features disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by alternative features for achieving the same, equivalent, or similar purpose. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features. Where used, "further," "preferably," "even further," and "more preferably" are simply starting points for describing another embodiment based on the foregoing embodiments, the combination of which with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment constitutes yet another embodiment.

[0043] In the implementation of functions and steps, the corresponding functions and steps in the various embodiments may occur in a different order than those shown. For example, two consecutive functions and steps may actually be executed or implemented substantially in parallel, and they may sometimes be executed or implemented in reverse order, depending on the functions involved.

[0044] Although this application has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this application fall within the scope of protection claimed in this application.

Claims

1. A high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument, characterized in that, include: The system includes a spirit level, a vertical ruler, an arc-shaped graduated ruler, and a main measuring ruler. The horizontal ruler and the vertical ruler are connected in a cross shape by screws. One end of the arc-shaped scale is fixed to the upper end of the vertical ruler, and the other end extends to the upper end of the main measuring ruler. The main measuring ruler and the vertical ruler are connected in a scissor shape by screws.

2. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument according to claim 1, characterized in that, The arc-shaped scale is semi-circular, and the surface of the scale is uniformly engraved with several scale lines.

3. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument according to claim 1, characterized in that, The main measuring scale and the vertical scale bar are coated with a heat-insulating coating, which includes an anti-corrosion layer and a thermochromic coating.

4. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument according to claim 3, characterized in that, The thermochromic coating is applied to the end of the main measuring scale and vertical ruler near the insulated anti-slip handle, and the anti-corrosion layer is applied to the end of the main measuring scale and vertical ruler away from the insulated anti-slip handle.

5. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument according to claim 1, characterized in that, The vertical ruler is marked with vertical graduation lines.

6. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument according to claim 1, characterized in that, Both the main measuring ruler and the vertical ruler have insulated, non-slip handles at the end near the arc-shaped scale.

7. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument according to claim 1, characterized in that, The horizontal ruler is designed to be longer than the diameter of the inlet of the medium-frequency furnace.

8. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument according to claim 1, characterized in that, The surface of the level ruler is equipped with a level bubble meter.

9. The high-precision aluminum electrolysis intermediate frequency furnace lining loss measuring instrument according to claim 1, characterized in that, A rotation limit strip is provided at the connection between the main measuring ruler and the vertical ruler bar.

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